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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mn10300/mm/cache-dbg-inv.S
10817 views
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/* MN10300 CPU cache invalidation routines

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 *

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 * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.

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 * Written by David Howells ([email protected])

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 *

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 * This program is free software; you can redistribute it and/or

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 * modify it under the terms of the GNU General Public Licence

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 * as published by the Free Software Foundation; either version

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 * 2 of the Licence, or (at your option) any later version.

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 */

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#include <linux/sys.h>

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#include <linux/linkage.h>

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#include <asm/smp.h>

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#include <asm/page.h>

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#include <asm/cache.h>

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#include <asm/irqflags.h>

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#include <asm/cacheflush.h>

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#include "cache.inc"

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	.am33_2

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	.globl	debugger_local_cache_flushinv

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###############################################################################

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#

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# void debugger_local_cache_flushinv(void)

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#

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# Invalidate the entire icache

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#

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###############################################################################

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	ALIGN

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	.globl	debugger_local_cache_flushinv

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        .type	debugger_local_cache_flushinv,@function

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debugger_local_cache_flushinv:

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	#

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	# we only need to invalidate the icache in this cache mode

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	#

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	mov	CHCTR,a0

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	movhu	(a0),d0

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	btst	CHCTR_ICEN,d0

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	beq	debugger_local_cache_flushinv_end

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	invalidate_icache 1

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debugger_local_cache_flushinv_end:

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	ret	[],0

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	.size	debugger_local_cache_flushinv,.-debugger_local_cache_flushinv

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